Fortunately for all of the people in the world who are ill, there are doctors, most of whom could have easily gone into other professions (and most of whom also have other business interests–investment properties, franchises, etc.) to help them.

Here’s an exceptional one we happen to know of, and there are many more. http://www.sandiegouniontribune.com/news/2015/sep/21/ferdowsmakan-rady-surgeon/. .

Edit:
+as FIH mentioned, marry well.